INPUTOUTPUT AND STORAGE DEVICES
STORAGE DEVICES HARD DISK SSD AND FLASH MEMORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Write once, read many times and non-volatile
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Write many times, read many times and volatile
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Write once, read many times and volatile
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Write many times, read many times and non-volatile
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Detailed explanation-1: -"R” format DVDs can be written once and read arbitrarily many times, whereas “RW” formats can be written to repeatedly. Thus, “R” format discs are only suited to non-volatile data storage, such as audio or video. This can cause confusion because the ‘DVD+RW Alliance’ logo is a stylized ‘RW’.
Detailed explanation-2: -Thus, a DVD-ROM is an optical storage media and it can be written only once.
Detailed explanation-3: -DVD-R stands for Digital Versatile Disk Recordable. DVD-RW stands for Digital Versatile Disk Re-Writable. DVD-R is a write once read many type of disk. This means, it can be written only once, but can be read many times.
Detailed explanation-4: -DVD-R and DVD+R record data one time only, then the disc is only readable. DVD-RW, DVD+RW and DVD-RAM allow you to record and erase data multiple times. DVD-ROM only reads data; you cannot save to this disc.